help with a query that give me an error

Hello, i'm trying to use the form_altern in drupal 6.x, but I get a drupal error:
Here is my code:

function ayuda_form_alter(&$form, $form_state, $form_id){
	// print_r ($form_id); para saber la identidad del formulario
	// print_r ($form); para conocer las características de todos los campos del form
	if($form_id == 'stormproject_node_form'){
			//unset ($form['log']); // borra el campo 'Mensaje de registro' del tipo de contenido 'receta_node_form'
	unset ($form['group1']['organization_nid']['#options']);
			
			
	
	$result =  db_query("SELECT nid, title FROM {node} WHERE type = '%s' AND STATUS =%d", array('stormorganization', 1));
	$options = array();
	while(list($nid, $title) = mysql_fetch_row($result)){
	$options [$nid] = $title;
	}
	//$options = array('si','no');
		
	$form['group1']['organization_nid'] = array ( 	   
	'#type' => select, 	   
	'#title' => Organization, 	  
	'#options' => $options, 	  
	);
	
	echo '<pre>';
	print_r ($form);
	echo '</pre>';
	}
}

And the mistake is:

warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in /var/www/storm/sites/all/modules/ayuda/ayuda.module on line 21.

I have check the query in phpmyadmin, and it gives me a result with two rows.

Thanks

Oskar